Title :
Multiplexing Bragg gratings using combined wavelength and spatial division techniques with digital resolution enhancement
Author :
Hu, Ya ; Chen, S. ; Zhang, Leiqi ; Bennion, I.
Author_Institution :
Sch. of Electr., Electron. & Inf. Eng., South Bank Univ., London
fDate :
11/6/1997 12:00:00 AM
Abstract :
A novel multiplexing technique is described, which employs an imaging spectrograph to interrogate fibre Bragg gratings in multiple fibre channels simultaneously, and digital algorithms to enhance the spectral resolution. An equivalent strain sensing resolution of 1.6 με has been achieved in the preliminary experiments
Keywords :
diffraction gratings; optical crosstalk; optical fibre communication; wavelength division multiplexing; Bragg gratings; WDM; digital algorithms; digital resolution enhancement; equivalent strain sensing resolution; fibre Bragg gratings; imaging spectrograph; multiple fibre channels; multiplexing technique; spatial division techniques; spectral resolution;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19971326
